My country is Australia, and your horse is pulling your leg
I have no doubt that a pro triathlete's biggest cycling week would go close to that of a pro rider, but not swimmers & runners. No way.
In short..
Swim: 10-12 hours per week
Ride: 400-700k per week
Run: 80-130k per week
In detail
Swim: No more than 30-36kms per week. That would be 5 or 6 sessions per week, 6k or 2 hours per session. Endurance swimmers do 70-80 per week. Hackett used to do about 80.
Ride: Going from some of the guys I know who have done well at Hawaii, they would average about 500 per week. A guy I know has twice been in the top 10 there, and his biggest ever week was 800k - but when he did that, he significantly reduced his normal 90-100k running week. Twice he had a top 5 bike split at Hawaii.
Run: 100-130km, compared to marathon runners 200km. Mark Allen used to max out at 130.
By the way - my money would be on either Alexander or McCormack tomorrow. Macca has been unusually quiet, which normally means he is focused.